ui: dragging-to-zoom on graph results in incorrect start time within the DB Console metrics page

[thtruo]

Describe the problem

When dragging to zoom on a graph within the DB Console, the resulting graph displays the incorrect start time. This makes it challenging to investigate

To Reproduce

1. Go to any metrics dashboard within the DB Console, e.g. Overview dashboard
2. Click and drag to zoom in on a graph
3. Notice that after dragging, the zoomed in graph incorrectly presents the starting time - it does not correspond to the actual start time you picked (the end time is correct)

Expected behavior
After dragging to zoom, I expect the new start and end time to reflect the time boundaries that I clicked/dragged.

Environment:

• CockroachDB version 22.1

Jira issue: CRDB-17400

[nvanbenschoten]

I noticed this today as well. On v22.1.2, the end time of a drag-to-zoom interval is correct, but the start time is adjusted so that the interval is less than or equal to 1 hour. As a result, drag-to-zoom works correctly for intervals that are less than 1 hour, but is broken for intervals that are greater than 1 hour.

[maryliag]

Seems duplicate of #71205